JP2003073030A - Take-up device for metallic wire member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a take-up device for a metallic wire member capable of taking up the metallic wire member in the direction to eliminate the inherent curling to provide a reel product capable of minimizing sheet curling phenomenon. SOLUTION: In this take-up device for the metallic wire member W provided with at least one guide roller and a take-up shaft for mounting a reel, the final guide roller 1 is rotated by running the metallic wire member in the direction opposite to the rotating direction of the take-up shaft 2 to inhibit the natural torsion of the metallic wire member W on a reel barrel part 4.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rubber product such as a tire or a hose, which is placed after a wire drawing machine or a twisting machine, and a metal filament produced through a predetermined process is wound on a reel. The present invention relates to a winding device for a metal filament, which is used as a reel product for use in the manufacture of a wire.

[0002]

2. Description of the Related Art A conventional winding device comprises at least one guide roller and a reel mounting winding shaft, and a final guide roller 11 is wound around a reel 12 as shown in FIG. It is arranged above the reel 12 so as to be rotated by traveling of the metal filament in the same direction as the rotation direction of the take-up shaft. And, as this kind of winding device, the final guide roller 11
Includes a traverse roller type in which the reel 12 reciprocates between both flanges, and a reel traverse type in which the winding shaft mounted with the reel 12 rotates and reciprocates.

By the way, it is desirable that the metal filament is manufactured so as to have straightness. However, when the straightness of the metal filament is measured by the arc height method after cutting into a certain size, the metal filament is bent in a gentle arc shape as shown in FIG. Is inevitably given due to the manufacturing process.

According to the prior art, since the final guide roller 11 is arranged so as to rotate in the same direction as the rotation direction of the winding shaft of the reel 12, the reel product has the metal filament W naturally. When twisted, the inside of the unique habit (belly) is the body 1.
The shape follows the curved surface of No. 3 and is wound on the reel 12. Here, the natural twist means that the metal filament W is naturally twisted so that the inside (belly) of the peculiar habit fits into the curved surfaces of the guide roller 11 and the reel body 13. Further, generally, the radius of curvature of the barrel portion 13 of the reel is smaller than the radius of curvature of the peculiar habit. Therefore, the metal filament W of the reel product is under the condition that the peculiar habit increases with time due to inelastic deformation (the radius of curvature decreases).

In the case of tires, for example, many reel products are mounted on a composite rubber sheet forming machine and used. That is, a composite rubber sheet is formed by coating metal filaments drawn out from a large number of reel products at the same time and aligned in parallel with each other to form a composite rubber sheet, and then cut into a predetermined length and shape to manufacture a tire. There is. At this time, in the composite rubber sheet, if the metal filament has a unique habit with a small radius of curvature, a phenomenon in which the sheet end portion jumps up (so-called sheet curl phenomenon) occurs. When the sheet curl phenomenon occurs, not only the workability in the post-process of tire production is deteriorated, but also the tire performance is deteriorated.

[0006]

SUMMARY OF THE INVENTION Therefore, according to the present invention, a reel product capable of winding a metal filament in a direction to eliminate the peculiar habit with a simple mechanism and reducing the sheet curl phenomenon as much as possible. It is an object of the present invention to provide a winding device for a metal filament that becomes the following.

[0007]

SUMMARY OF THE INVENTION A winding device of the present invention is a winding device for a metal filament provided with at least one guide roller and a winding shaft for mounting a reel. Is arranged so as to rotate by the traveling of the metal filament in the direction opposite to the rotation direction of the winding shaft and to suppress natural twisting of the metal filament in the reel body.

[0008] Here, to suppress the natural twisting,
This means that the outer side (back) of the peculiar habit shown in FIG. 2 is directed toward the body of the take-up reel so as to maintain the state in which the metal filament is introduced into the reel. This can be achieved by a configuration in which the roller is arranged so that the included angle between the incoming line and the outgoing line of the metal filament is about 90 degrees or less. Further, if the final guide roller is arranged close to the reel, the natural twisting can be suppressed more reliably.

According to this means, the metal filament is surely introduced while keeping the outer side (back) of the peculiar habit toward the body of the reel and wound up on the reel, and the metal wire of the reel product. Bending stress from the inside (belly) to the outside (back) of the peculiar habit is applied to the striatum with time. Therefore, in the metal filaments fed from the reel product, the size of the peculiar peculiarity is reduced (if the arc height shown in FIG.
Alternatively, it becomes a form with substantially straightness).

By the way, in the case of a metal filament having an inherent habit that is inevitably imparted in the manufacturing process of the metal filament, the inside (belly) of the intrinsic habit is the arc of the roller at the introduction port to the final guide roller. Twist naturally to become familiar. Subsequently, the metal filaments introduced into the reels try to naturally twist again on the reel body so that the inside (belly) of the peculiar habit faces the reel body. However, by arranging the final guide roller so that the included angle between the incoming pass line and the outgoing pass line is about 90 degrees or less, the resistance to natural twisting in the final guide roller is increased, and It is possible to suppress the natural twisting of the reel, and it is possible to wind while maintaining the state in which the outside (back) of the peculiar habit faces the body of the winding reel. When the included angle becomes an obtuse angle, the resistance against natural twisting on the final guide roller tends to decrease, and it becomes impossible to suppress natural twisting on the reel body.

Here, the resistance to natural twist will be described. Generally, when a metal filament is bent by a roller or the like, a compressive stress (-) acts on the contacting side of the roller or the like and a tensile stress (+) acts on the opposite side of the metal filament. The absolute values of both the tensile stress and the compressive stress increase as the obtuse angle changes to the acute angle. Therefore, the difference {a-(-b)} between the tensile stress (+ a) and the compressive stress (-b) becomes large, and the resistance to natural twisting becomes large (natural twisting is difficult).

Furthermore, the final guide roller is arranged in the vicinity of the reel, so that the metal filament can be wound on the reel before the natural twisting progresses much, and the natural twisting is further enhanced. This is because it can be reliably suppressed.

The metal filament in the present invention means not only a single wire but also a twisted wire in which a plurality of single wires are twisted, or a wire in which these single wires or twisted wires have a small curving such as a wavy shape or a spiral shape. It also means the body.

[0014]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, the winding device comprises a final guide roller 1 for guiding the metal filament to the reel, and a winding shaft 2 in the vicinity of the final guide roller 1. A reel 3 is detachably attached to the shaft 2. The final guide roller 1 is rotated (not driven to rotate) by the traveling of the metal filament, and its rotation direction is opposite to the rotation direction of the winding shaft 2 when the metal filament is wound. In addition, the included angle θ between the incoming line line W1 and the outgoing line line W2 of the metal filament is about 90 degrees or less. Further, the final guide roller 1 interferes (contacts) with the collar of the reel.
It is arranged so that it is as close as possible within the range not to do.

When the above winding device is used, the metal filaments that have run from the previous process are introduced into the body portion 4 of the reel 3 via the final guide roller 1, and the final guide roller 1 of the reel 3 is used. The reel product is reciprocated between both the collars and is wound while keeping the outer side (back) of the peculiar habit of the metal linear body facing the body portion 4.

By the way, the guide roller 1 is arranged on the upper right side of the reel 3 in FIG. 1, but it is arranged on an appropriate position such as above the reel 3 or on the upper left side according to the traveling direction of the metal filament. be able to.

Although the winding device has been described as a traverse roller type, it can be applied to a reel traverse type.

[0019]

According to the present invention, the metal filament can be reliably introduced and wound while keeping the outer side (back) of the peculiar habit facing the trunk of the take-up reel. It is possible to obtain a reel product in which a bending stress directed from the inside (belly) to the outside (back) of the peculiar striation is applied with time. Therefore, the metal filaments fed from the reel product can be made into a form in which the peculiar habit is reduced, the sheet curl phenomenon can be reduced as much as possible, and the workability in the rubber product, particularly the tire manufacturing process can be improved. It is possible to provide a reel product that is improved and contributes to the quality improvement of tires.

[Brief description of drawings]

FIG. 1 is a side view showing an arrangement of a final guide roller and a take-up reel according to an embodiment of the present invention.

FIG. 2 is a schematic diagram showing a bending habit of a metal filament.

FIG. 3 is a side view showing an arrangement of a final guide roller and a take-up reel of a conventional device.

[Explanation of symbols]

W, W1, W2 ... Metal filament 1, 11 ... Final guide roll 2 ... Take-up shaft 3, 12 ... Take-up reel 4, 13 ... Body of take-up reel θ: Inclined angle between the incoming and outgoing path lines of the guide roll

Claims (3)

[Claims] 1. A winding device for a metal filament, comprising at least one guide roller and a winding shaft for mounting a reel, wherein the final guide roller is in a direction opposite to the rotation direction of the winding shaft. A winding device for a metal filament, which is arranged so as to rotate as the metal filament travels and to suppress natural twisting of the metal filament in the reel body. 2. The metal linear member according to claim 1, wherein the final guide roller is arranged such that an included angle between an incoming path line and an outgoing path line of the metallic linear object is about 90 degrees or less. Take-up device. 3. The winding device for a metal filament according to claim 1, wherein the final guide roller is arranged close to the reel.